The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 24, 1982
Filed:
Aug. 11, 1980
Applicant:
Inventors:
Assignee:
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
562416 ;
Abstract
Aromatic polycarboxylic acids are produced in high yield by oxidation of polyalkyl-substituted aromatic aldehydes or polyalkyl-substituted aromatic carboxylic acids with molecular oxygen in water as a solvent in the presence of metal ions of manganese or cerium and a bromine ion-liberating compound as a catalyst, while keeping an oxygen concentration of effluent gas from reactor at least at 3%.
Komatsu, Makoto. (1982). Process for producing aromatic polycarboxylic acid (U.S. Patent No. 4346232). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4346232
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile